Chrysler 47RE, 47RH, 48RE Smart-Tech® High Capacity Input Shaft & Piston Kit
20% More direct clutch capacity than OE.
4-5-6 Clutch Apply Piston Kit
Specially designed to reduce clutch plate failure and coning in GM 6L80/6L90 transmissions.
Powerglide Performance Slip Yoke
Achieve greater strength and durability at an affordable price.
Learn more about the Sonnax Roadshow!
Watch the new Vacuum Testing Videos from Sonnax
Which Sonnax Kit is Right for Your Rebuild?
Line Pressure Booster Kits
Affordable kit for big performance without a big price tag.
The first step in correcting common shift problems.
The Sure Cure®
Comprehensive kit for big problems you don't want back.
The best parts for performance & heavy duty recalibration.
Pressure Switch Rebuild Master Pack